The SLIPSTREAM score is great! I prefer SPACEHUNTER, but definitely a great score that deserves release.

As for the film itself, it has a totally game cast that delivers some good performances, particularly Mark Hamill and the late Bob Peck, and some nice aerial photography, but a better director and a bigger budget would have helped. (Heck, the VHS copy I used to have just recycled an EPISODE IV promo shot of Hamill for the cover!)